You can simply use array.filter with indexOf to check the matching element in the next array. var arr = serviceList.filter(item => activeIds.indexOf(item.id) === -1); DEMO let activeIds = [202, 204] let serviceList = [{ “id”:201, “title”:”a” }, { “id”:202, “title”:”a” }, { “id”:203, “title”:”c” }, { “id”:204, “title”:”d” }, { “id”:205, “title”:”e” }]; let arr … Read more
As logically concluded by the linq example None is the same as !Any, so you could define your own extension method as follows: let none = (arr, callback) => !arr.some(callback) And then call like this: let arr = [“a”,”b”,”c”] let noBs = none(arr, el => el === “b”) Or if you want to extend Array.proto, … Read more
There must be something in your Q that i do not understand… Anyway In [2]: from numpy import array In [3]: a = array((1,0,0,1,1,0,0)) In [4]: b = 1-a In [5]: print a ; print b [1 0 0 1 1 0 0] [0 1 1 0 0 1 1] In [6]:
A die (half a pair of dice) is handy for observing the 24 different orientations, and can suggest operation sequences to generate them. You will see that any of six faces can be uppermost, and the sides below can be rotated into four different cardinal directions. Let us denote two operations: “turn” and “roll”, where … Read more
Another way of solving this is using Quickselect. This should give you a total average time complexity of O(n). Consider this: Find the kth largest number x using Quickselect (O(n)) Iterate through the array again (or just through the right-side partition) (O(n)) and save all elements ≥ x Return your saved elements (If there are … Read more
You can use find_index and pass the needed value from the array: a = [“a”, “b”, “c”] p a.find_index(‘a’) p a.find_index(‘b’) p a.find_index(‘c’) # => 0 # => 1 # => 2 You can use map to get every element inside your a array and then to get the index corresponding to each element: p … Read more
5 months later I’m coming back to answer my question (I’ve learned a lot since posting this question lol)…. First of all, since it is 5 months later I want to underscore that it is better to use the userEvent library instead of fireEvent if possible. I also would be remiss to not call out … Read more
Say you call: void Foo(){ int[] a = new int[5]; } In C# there is no way to undefine the variable a. That means a will be defined in Foo even if you set a to null. However, at the end of Foo a will fall out of scope. That means no code can reference … Read more
Numpy provides logical_and() for that purpose: a = np.array([ True, False, False, True, False], dtype=bool) b = np.array([False, True, True, True, False], dtype=bool) c = np.logical_and(a, b) # array([False, False, False, True, False], dtype=bool) More at Numpy Logical operations.